src/tdm_capture.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <sc1.lim@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include "tdm_private.h"
  41
  42 #define CAPTURE_FUNC_ENTRY() \
  43         tdm_func_capture *func_capture; \
  44         tdm_private_display *private_display; \
  45         tdm_private_module *private_module; \
  46         tdm_private_capture *private_capture; \
  47         tdm_error ret = TDM_ERROR_NONE; \
  48         TDM_RETURN_VAL_IF_FAIL(capture != NULL, TDM_ERROR_INVALID_PARAMETER); \
  49         private_capture = (tdm_private_capture*)capture; \
  50         private_display = private_capture->private_display; \
  51         private_module = private_capture->private_module; \
  52         func_capture = &private_module->func_capture
  53
  54 static void
  55 _tdm_capture_print_list(struct list_head *list)
  56 {
  57         tdm_capture_private_buffer *b = NULL;
  58         char str[512], *p;
  59         int len = sizeof(str);
  60
  61         TDM_RETURN_IF_FAIL(list != NULL);
  62
  63         p = str;
  64         LIST_FOR_EACH_ENTRY(b, list, link) {
  65                 if (len > 0) {
  66                         tbm_bo bo = tbm_surface_internal_get_bo(b->buffer, 0);
  67                         int flags = tbm_bo_get_flags(bo);
  68                         int l = snprintf(p, len, " (%p[bo_flags:%x])", b->buffer, flags);
  69                         p += l;
  70                         len -= l;
  71                 } else
  72                         break;
  73         }
  74
  75         TDM_INFO("\t %s", str);
  76 }
  77
  78 static tdm_capture_private_buffer *
  79 _tdm_capture_find_tbm_buffer(struct list_head *list, tbm_surface_h buffer)
  80 {
  81         tdm_capture_private_buffer *b = NULL, *bb = NULL;
  82
  83         LIST_FOR_EACH_ENTRY_SAFE(b, bb, list, link) {
  84                 if (b->buffer == buffer)
  85                         return b;
  86         }
  87
  88         return NULL;
  89 }
  90
  91 static tdm_capture_private_buffer *
  92 _tdm_capture_find_buffer(struct list_head *list, tdm_capture_private_buffer *capture_buffer)
  93 {
  94         tdm_capture_private_buffer *b = NULL, *bb = NULL;
  95
  96         LIST_FOR_EACH_ENTRY_SAFE(b, bb, list, link) {
  97                 if (b == capture_buffer)
  98                         return b;
  99         }
 100
 101         return NULL;
 102 }
 103
 104 static void
 105 _tdm_capture_thread_cb_done(tdm_private_display *private_display, void *object, tdm_thread_cb_base *cb_base, void *user_data)
 106 {
 107         tdm_thread_cb_capture_done *capture_done = (tdm_thread_cb_capture_done *)cb_base;
 108         tdm_private_capture *private_capture = object;
 109         tdm_capture_private_buffer *capture_buffer = NULL, *first_entry = NULL;
 110         tbm_surface_h buffer;
 111
 112         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 113
 114         assert(private_capture->owner_tid == syscall(SYS_gettid));
 115
 116         buffer = capture_done->buffer;
 117
 118         if (tdm_debug_dump & TDM_DUMP_FLAG_CAPTURE) {
 119                 /* LCOV_EXCL_START */
 120                 char str[TDM_PATH_LEN];
 121                 static int i;
 122                 snprintf(str, TDM_PATH_LEN, "capture_%03d", i++);
 123                 tdm_helper_dump_buffer_str(buffer, tdm_debug_dump_dir, str);
 124                 /* LCOV_EXCL_STOP */
 125         }
 126
 127         if (tdm_debug_module & TDM_DEBUG_BUFFER)
 128                 TDM_INFO("capture(%p) done: %p", private_capture, buffer);
 129
 130         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 131                 tbm_bo bo = tbm_surface_internal_get_bo(buffer, 0);
 132                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 133         }
 134
 135         if (!LIST_IS_EMPTY(&private_capture->buffer_list)) {
 136                 first_entry = container_of((&private_capture->buffer_list)->next, capture_buffer, link);
 137                 if (first_entry->buffer != buffer)
 138                         TDM_ERR("buffer(%p) is skipped", first_entry->buffer);
 139         } else {
 140                 TDM_NEVER_GET_HERE();
 141         }
 142
 143         if ((capture_buffer = _tdm_capture_find_tbm_buffer(&private_capture->buffer_list, buffer))) {
 144                 LIST_DEL(&capture_buffer->link);
 145                 LIST_DELINIT(&capture_buffer->commit_link);
 146
 147                 _pthread_mutex_unlock(&private_display->lock);
 148                 if (private_capture->done_func)
 149                         private_capture->done_func(capture_buffer, buffer, private_capture->done_user_data);
 150                 tdm_buffer_unref_backend(buffer);
 151                 _pthread_mutex_lock(&private_display->lock);
 152
 153                 free(capture_buffer);
 154         }
 155 }
 156
 157 static void
 158 _tdm_capture_cb_done(tdm_capture *capture_module, tbm_surface_h buffer, void *user_data)
 159 {
 160         tdm_private_capture *private_capture = user_data;
 161         tdm_thread_cb_capture_done capture_done;
 162         tdm_error ret;
 163
 164         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 165
 166         memset(&capture_done, 0, sizeof capture_done);
 167         capture_done.base.type = TDM_THREAD_CB_CAPTURE_DONE;
 168         capture_done.base.length = sizeof capture_done;
 169         capture_done.base.object_stamp = private_capture->stamp;
 170         capture_done.base.data = NULL;
 171         capture_done.base.sync = 0;
 172         capture_done.buffer = buffer;
 173
 174         ret = tdm_thread_cb_call(private_capture, &capture_done.base, 1);
 175         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 176 }
 177
 178 static void *
 179 _tdm_capture_find_object(tdm_private_display *private_display, double stamp)
 180 {
 181         tdm_private_module *private_module = NULL;
 182         tdm_private_capture *private_capture = NULL;
 183
 184         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 185
 186         LIST_FOR_EACH_ENTRY(private_module, &private_display->module_list, link) {
 187                 LIST_FOR_EACH_ENTRY(private_capture, &private_module->capture_list, display_link) {
 188                         if (private_capture->stamp == stamp)
 189                                 return private_capture;
 190                 }
 191         }
 192
 193         return NULL;
 194 }
 195
 196 INTERN tdm_error
 197 tdm_capture_init(tdm_private_display *private_display)
 198 {
 199         tdm_thread_cb_set_find_func(TDM_THREAD_CB_CAPTURE_DONE, _tdm_capture_find_object);
 200
 201         return TDM_ERROR_NONE;
 202 }
 203
 204 INTERN tdm_private_capture *
 205 tdm_capture_create_output_internal(tdm_private_output *private_output,
 206                                                                    tdm_error *error)
 207 {
 208         tdm_private_display *private_display = private_output->private_display;
 209         tdm_private_module *private_module = private_output->private_module;
 210         tdm_func_output *func_output = &private_module->func_output;
 211         tdm_func_capture *func_capture = &private_module->func_capture;
 212         tdm_private_capture *private_capture = NULL;
 213         tdm_capture *capture_module = NULL;
 214         tdm_error ret = TDM_ERROR_NONE;
 215
 216         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 217
 218         if (!(private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
 219                 /* LCOV_EXCL_START */
 220                 TDM_ERR("backend(%s) no capture capability", private_module->module_data->name);
 221                 if (error)
 222                         *error = TDM_ERROR_NO_CAPABILITY;
 223                 return NULL;
 224                 /* LCOV_EXCL_STOP */
 225         }
 226
 227         if (!(private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_OUTPUT)) {
 228                 /* LCOV_EXCL_START */
 229                 TDM_ERR("backend(%s) no output capture capability", private_module->module_data->name);
 230                 if (error)
 231                         *error = TDM_ERROR_NO_CAPABILITY;
 232                 return NULL;
 233                 /* LCOV_EXCL_STOP */
 234         }
 235
 236         capture_module = func_output->output_create_capture(
 237                                                   private_output->output_backend, &ret);
 238         if (ret != TDM_ERROR_NONE) {
 239                 /* LCOV_EXCL_START */
 240                 if (error)
 241                         *error = ret;
 242                 return NULL;
 243                 /* LCOV_EXCL_STOP */
 244         }
 245
 246         private_capture = calloc(1, sizeof(tdm_private_capture));
 247         if (!private_capture) {
 248                 /* LCOV_EXCL_START */
 249                 TDM_ERR("failed: alloc memory");
 250                 func_capture->capture_destroy(capture_module);
 251                 if (error)
 252                         *error = TDM_ERROR_OUT_OF_MEMORY;
 253                 return NULL;
 254                 /* LCOV_EXCL_STOP */
 255         }
 256
 257         ret = tdm_thread_cb_add(private_capture, TDM_THREAD_CB_CAPTURE_DONE, NULL, _tdm_capture_thread_cb_done, NULL);
 258         if (ret != TDM_ERROR_NONE) {
 259                 TDM_ERR("capture tdm_thread_cb_add failed");
 260                 func_capture->capture_destroy(capture_module);
 261                 free(private_capture);
 262                 if (error)
 263                         *error = ret;
 264                 return NULL;
 265         }
 266
 267         ret = func_capture->capture_set_done_handler(capture_module, _tdm_capture_cb_done, private_capture);
 268         if (ret != TDM_ERROR_NONE) {
 269                 /* LCOV_EXCL_START */
 270                 TDM_ERR("capture(%p) set capture_done_handler failed", private_capture);
 271                 func_capture->capture_destroy(capture_module);
 272                 free(private_capture);
 273                 if (error)
 274                         *error = ret;
 275                 return NULL;
 276                 /* LCOV_EXCL_STOP */
 277         }
 278
 279         private_capture->stamp = tdm_helper_get_time();
 280         while (_tdm_capture_find_object(private_display, private_capture->stamp))
 281                 private_capture->stamp++;
 282
 283         LIST_ADD(&private_capture->link, &private_output->capture_list);
 284         LIST_ADD(&private_capture->display_link, &private_module->capture_list);
 285
 286         private_capture->private_module = private_module;
 287
 288         private_capture->target = TDM_CAPTURE_TARGET_OUTPUT;
 289         private_capture->private_display = private_display;
 290         private_capture->private_output = private_output;
 291         private_capture->private_layer = NULL;
 292         private_capture->capture_module = capture_module;
 293         private_capture->owner_tid = syscall(SYS_gettid);
 294
 295         LIST_INITHEAD(&private_capture->pending_buffer_list);
 296         LIST_INITHEAD(&private_capture->buffer_list);
 297
 298         TDM_DBG("capture(%p) create", private_capture);
 299
 300         if (error)
 301                 *error = TDM_ERROR_NONE;
 302
 303         return private_capture;
 304 }
 305
 306 /* LCOV_EXCL_START */
 307 INTERN tdm_private_capture *
 308 tdm_capture_create_layer_internal(tdm_private_layer *private_layer,
 309                                                                   tdm_error *error)
 310 {
 311         tdm_private_output *private_output = private_layer->private_output;
 312         tdm_private_module *private_module = private_layer->private_module;
 313         tdm_private_display *private_display = private_output->private_display;
 314         tdm_func_layer *func_layer = &private_module->func_layer;
 315         tdm_func_capture *func_capture = &private_module->func_capture;
 316         tdm_private_capture *private_capture = NULL;
 317         tdm_capture *capture_module = NULL;
 318         tdm_error ret = TDM_ERROR_NONE;
 319
 320         TDM_RETURN_VAL_IF_FAIL(TDM_MUTEX_IS_LOCKED(), NULL);
 321
 322         if (!(private_module->capabilities & TDM_DISPLAY_CAPABILITY_CAPTURE)) {
 323                 TDM_ERR("backend(%s) no capture capability", private_module->module_data->name);
 324                 if (error)
 325                         *error = TDM_ERROR_NO_CAPABILITY;
 326                 return NULL;
 327         }
 328
 329         if (!(private_module->caps_capture.capabilities & TDM_CAPTURE_CAPABILITY_LAYER)) {
 330                 TDM_ERR("backend(%s) no layer capture capability", private_module->module_data->name);
 331                 if (error)
 332                         *error = TDM_ERROR_NO_CAPABILITY;
 333                 return NULL;
 334         }
 335
 336         capture_module = func_layer->layer_create_capture(private_layer->layer_backend,
 337                                           &ret);
 338         if (ret != TDM_ERROR_NONE)
 339                 return NULL;
 340
 341         private_capture = calloc(1, sizeof(tdm_private_capture));
 342         if (!private_capture) {
 343                 TDM_ERR("failed: alloc memory");
 344                 func_capture->capture_destroy(capture_module);
 345                 if (error)
 346                         *error = TDM_ERROR_OUT_OF_MEMORY;
 347                 return NULL;
 348         }
 349
 350         private_capture->stamp = tdm_helper_get_time();
 351         while (_tdm_capture_find_object(private_display, private_capture->stamp))
 352                 private_capture->stamp++;
 353
 354         LIST_ADD(&private_capture->link, &private_layer->capture_list);
 355         LIST_ADD(&private_capture->display_link, &private_module->capture_list);
 356
 357         private_capture->private_module = private_module;
 358
 359         private_capture->target = TDM_CAPTURE_TARGET_LAYER;
 360         private_capture->private_display = private_display;
 361         private_capture->private_output = private_output;
 362         private_capture->private_layer = private_layer;
 363         private_capture->capture_module = capture_module;
 364         private_capture->owner_tid = syscall(SYS_gettid);
 365
 366         LIST_INITHEAD(&private_capture->pending_buffer_list);
 367         LIST_INITHEAD(&private_capture->buffer_list);
 368
 369         TDM_DBG("capture(%p) create", private_capture);
 370
 371         if (error)
 372                 *error = TDM_ERROR_NONE;
 373
 374         return private_capture;
 375 }
 376 /* LCOV_EXCL_STOP */
 377
 378 INTERN void
 379 tdm_capture_destroy_internal(tdm_private_capture *private_capture)
 380 {
 381         tdm_private_display *private_display;
 382         tdm_private_module *private_module;
 383         tdm_func_capture *func_capture;
 384         tdm_capture_private_buffer *b = NULL, *bb = NULL;
 385         struct list_head clone_list;
 386
 387         TDM_RETURN_IF_FAIL(TDM_MUTEX_IS_LOCKED());
 388
 389         if (!private_capture)
 390                 return;
 391
 392         private_display = private_capture->private_display;
 393
 394         tdm_thread_cb_remove(private_capture, TDM_THREAD_CB_CAPTURE_DONE, NULL, _tdm_capture_thread_cb_done, NULL);
 395
 396         LIST_DEL(&private_capture->link);
 397         LIST_DEL(&private_capture->display_link);
 398
 399         private_module = private_capture->private_module;
 400         func_capture = &private_module->func_capture;
 401         func_capture->capture_destroy(private_capture->capture_module);
 402
 403         if (!LIST_IS_EMPTY(&private_capture->pending_buffer_list)) {
 404                 TDM_WRN("capture(%p) not finished:", private_capture);
 405                 _tdm_capture_print_list(&private_capture->pending_buffer_list);
 406
 407                 LIST_INITHEAD(&clone_list);
 408                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->pending_buffer_list, link) {
 409                         LIST_DEL(&b->link);
 410                         LIST_ADDTAIL(&b->link, &clone_list);
 411                 }
 412
 413                 _pthread_mutex_unlock(&private_display->lock);
 414                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &clone_list, link) {
 415                         LIST_DEL(&b->link);
 416
 417                         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 418                                 tbm_bo bo = tbm_surface_internal_get_bo(b->buffer, 0);
 419                                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 420                         }
 421
 422                         tdm_buffer_unref_backend(b->buffer);
 423                         free(b);
 424                 }
 425                 _pthread_mutex_lock(&private_display->lock);
 426         }
 427
 428         if (!LIST_IS_EMPTY(&private_capture->buffer_list)) {
 429                 TDM_WRN("capture(%p) not finished:", private_capture);
 430                 _tdm_capture_print_list(&private_capture->buffer_list);
 431
 432                 LIST_INITHEAD(&clone_list);
 433                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->buffer_list, link) {
 434                         LIST_DEL(&b->link);
 435                         LIST_ADDTAIL(&b->link, &clone_list);
 436                 }
 437
 438                 _pthread_mutex_unlock(&private_display->lock);
 439                 LIST_FOR_EACH_ENTRY_SAFE(b, bb, &clone_list, link) {
 440                         LIST_DEL(&b->link);
 441
 442                         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 443                                 tbm_bo bo = tbm_surface_internal_get_bo(b->buffer, 0);
 444                                 TDM_TRACE_ASYNC_END((intptr_t)private_capture, "[CAPTURE] %d", tbm_bo_export(bo));
 445                         }
 446
 447                         tdm_buffer_unref_backend(b->buffer);
 448                         free(b);
 449                 }
 450                 _pthread_mutex_lock(&private_display->lock);
 451         }
 452
 453         private_capture->stamp = 0;
 454         free(private_capture);
 455 }
 456
 457 EXTERN void
 458 tdm_capture_destroy(tdm_capture *capture)
 459 {
 460         tdm_private_capture *private_capture = capture;
 461         tdm_private_display *private_display;
 462
 463         if (!private_capture)
 464                 return;
 465
 466         TDM_DBG("capture(%p) destroy", private_capture);
 467
 468         private_display = private_capture->private_display;
 469
 470         _pthread_mutex_lock(&private_display->lock);
 471         tdm_capture_destroy_internal(private_capture);
 472         _pthread_mutex_unlock(&private_display->lock);
 473 }
 474
 475 EXTERN tdm_error
 476 tdm_capture_set_info(tdm_capture *capture, tdm_info_capture *info)
 477 {
 478         CAPTURE_FUNC_ENTRY();
 479
 480         TDM_RETURN_VAL_IF_FAIL(info != NULL, TDM_ERROR_INVALID_PARAMETER);
 481         TDM_RETURN_VAL_IF_FAIL(info->type != 0, TDM_ERROR_INVALID_PARAMETER);
 482
 483         _pthread_mutex_lock(&private_display->lock);
 484
 485         if (!func_capture->capture_set_info) {
 486                 /* LCOV_EXCL_START */
 487                 _pthread_mutex_unlock(&private_display->lock);
 488                 TDM_DBG("failed: not implemented!!");
 489                 return TDM_ERROR_NOT_IMPLEMENTED;
 490                 /* LCOV_EXCL_STOP */
 491         }
 492
 493         if (info->type == TDM_CAPTURE_TYPE_STREAM && info->frequency == 0) {
 494                 tdm_private_output *private_output = private_capture->private_output;
 495                 info->frequency = private_output->current_mode->vrefresh;
 496         }
 497
 498         TDM_INFO("capture(%p) info: dst(%ux%u %u,%u %ux%u %c%c%c%c) trans(%d) type(%d) freq(%d) flags(%x)",
 499                          private_capture,
 500                          info->dst_config.size.h, info->dst_config.size.v,
 501                          info->dst_config.pos.x, info->dst_config.pos.y,
 502                          info->dst_config.pos.w, info->dst_config.pos.h,
 503                          FOURCC_STR(info->dst_config.format),
 504                          info->transform, info->type, info->frequency, info->flags);
 505
 506         ret = func_capture->capture_set_info(private_capture->capture_module, info);
 507         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 508
 509         private_capture->info = *info;
 510
 511         _pthread_mutex_unlock(&private_display->lock);
 512
 513         return ret;
 514 }
 515
 516 EXTERN tdm_error
 517 tdm_capture_set_done_handler(tdm_capture *capture, tdm_capture_done_handler func, void *user_data)
 518 {
 519         tdm_private_display *private_display;
 520         tdm_private_capture *private_capture;
 521         tdm_error ret = TDM_ERROR_NONE;
 522
 523         TDM_RETURN_VAL_IF_FAIL(capture != NULL, TDM_ERROR_INVALID_PARAMETER);
 524
 525         private_capture = (tdm_private_capture*)capture;
 526         private_display = private_capture->private_display;
 527
 528         TDM_RETURN_VAL_IF_FAIL(func != NULL, TDM_ERROR_INVALID_PARAMETER);
 529
 530         _pthread_mutex_lock(&private_display->lock);
 531
 532         private_capture->done_func = func;
 533         private_capture->done_user_data = user_data;
 534
 535         _pthread_mutex_unlock(&private_display->lock);
 536
 537         return ret;
 538 }
 539
 540 EXTERN tdm_error
 541 tdm_capture_attach(tdm_capture *capture, tbm_surface_h buffer)
 542 {
 543         tdm_capture_private_buffer *capture_buffer;
 544
 545         CAPTURE_FUNC_ENTRY();
 546
 547         TDM_RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
 548
 549         _pthread_mutex_lock(&private_display->lock);
 550
 551         if (!func_capture->capture_attach) {
 552                 /* LCOV_EXCL_START */
 553                 _pthread_mutex_unlock(&private_display->lock);
 554                 TDM_DBG("failed: not implemented!!");
 555                 return TDM_ERROR_NOT_IMPLEMENTED;
 556                 /* LCOV_EXCL_STOP */
 557         }
 558
 559         if (tdm_module_check_abi(private_module, 1, 2) &&
 560                 private_module->caps_capture.max_attach_count > 0) {
 561                 /* LCOV_EXCL_START */
 562                 int length = LIST_LENGTH(&private_capture->pending_buffer_list) +
 563                                          LIST_LENGTH(&private_capture->buffer_list);
 564                 if (length >= private_module->caps_capture.max_attach_count) {
 565                         _pthread_mutex_unlock(&private_display->lock);
 566                         TDM_DBG("failed: backend(%s) too many attached!! max_attach_count(%d)",
 567                                         private_module->module_data->name, private_module->caps_capture.max_attach_count);
 568                         return TDM_ERROR_BAD_REQUEST;
 569                 }
 570                 /* LCOV_EXCL_STOP */
 571         }
 572
 573         capture_buffer = calloc(1, sizeof * capture_buffer);
 574         if (!capture_buffer) {
 575                 /* LCOV_EXCL_START */
 576                 _pthread_mutex_unlock(&private_display->lock);
 577                 TDM_ERR("alloc failed");
 578                 return TDM_ERROR_OUT_OF_MEMORY;
 579                 /* LCOV_EXCL_STOP */
 580         }
 581
 582         ret = func_capture->capture_attach(private_capture->capture_module, buffer);
 583         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 584
 585         if (ret != TDM_ERROR_NONE) {
 586                 /* LCOV_EXCL_START */
 587                 free(capture_buffer);
 588                 _pthread_mutex_unlock(&private_display->lock);
 589                 TDM_ERR("attach failed");
 590                 return ret;
 591                 /* LCOV_EXCL_STOP */
 592         }
 593
 594         LIST_ADDTAIL(&capture_buffer->link, &private_capture->pending_buffer_list);
 595         capture_buffer->buffer = tdm_buffer_ref_backend(buffer);
 596
 597         if (tdm_debug_module & TDM_DEBUG_BUFFER) {
 598                 TDM_INFO("capture(%p) attached:", private_capture);
 599                 _tdm_capture_print_list(&private_capture->buffer_list);
 600         }
 601
 602         if (tdm_ttrace_module & TDM_TTRACE_CAPTURE) {
 603                 tbm_bo bo = tbm_surface_internal_get_bo(buffer, 0);
 604                 TDM_TRACE_ASYNC_BEGIN((intptr_t)capture, "[CAPTURE] %d", tbm_bo_export(bo));
 605         }
 606
 607         _pthread_mutex_unlock(&private_display->lock);
 608
 609         return ret;
 610 }
 611
 612 EXTERN tdm_error
 613 tdm_capture_commit(tdm_capture *capture)
 614 {
 615         tdm_capture_private_buffer *b = NULL, *bb = NULL;
 616         tdm_private_output *private_output;
 617         struct list_head commit_buffer_list;
 618
 619         CAPTURE_FUNC_ENTRY();
 620
 621         _pthread_mutex_lock(&private_display->lock);
 622
 623         private_output = private_capture->private_output;
 624
 625         /* TODO: possible when standby mode? can't decide it yet. no scenario. */
 626         if (TDM_OUTPUT_DPMS_VSYNC_IS_OFF(private_output->current_dpms_value)) {
 627                 TDM_ERR("output(%d) dpms: %s", private_output->pipe,
 628                                 tdm_dpms_str(private_output->current_dpms_value));
 629                 _pthread_mutex_unlock(&private_display->lock);
 630                 return TDM_ERROR_BAD_REQUEST;
 631         }
 632
 633         if (!func_capture->capture_commit) {
 634                 /* LCOV_EXCL_START */
 635                 _pthread_mutex_unlock(&private_display->lock);
 636                 TDM_DBG("failed: not implemented!!");
 637                 return TDM_ERROR_NOT_IMPLEMENTED;
 638                 /* LCOV_EXCL_STOP */
 639         }
 640
 641         LIST_INITHEAD(&commit_buffer_list);
 642
 643         LIST_FOR_EACH_ENTRY_SAFE(b, bb, &private_capture->pending_buffer_list, link) {
 644                 LIST_DEL(&b->link);
 645                 LIST_ADDTAIL(&b->link, &private_capture->buffer_list);
 646                 LIST_ADDTAIL(&b->commit_link, &commit_buffer_list);
 647         }
 648
 649         if (tdm_debug_module & TDM_DEBUG_BUFFER) {
 650                 TDM_INFO("capture(%p) committed:", private_capture);
 651                 _tdm_capture_print_list(&private_capture->pending_buffer_list);
 652                 _tdm_capture_print_list(&private_capture->buffer_list);
 653         }
 654
 655         ret = func_capture->capture_commit(private_capture->capture_module);
 656         TDM_WARNING_IF_FAIL(ret == TDM_ERROR_NONE);
 657
 658         LIST_FOR_EACH_ENTRY_SAFE(b, bb, &commit_buffer_list, commit_link) {
 659                 LIST_DELINIT(&b->commit_link);
 660
 661                 if (!_tdm_capture_find_buffer(&private_capture->buffer_list, b))
 662                         continue;
 663
 664                 if (ret != TDM_ERROR_NONE) {
 665                         /* LCOV_EXCL_START */
 666                         /* Not to call the user release handler when failed.
 667                          * Do we have to call this function here really?
 668                          * User better use set_done_handler to know when pp is done. Using
 669                          * buffer_release_handler is not good.
 670                          */
 671                         tdm_buffer_remove_release_handler_internal(b->buffer);
 672
 673                         _pthread_mutex_unlock(&private_display->lock);
 674                         tdm_buffer_unref_backend(b->buffer);
 675                         _pthread_mutex_lock(&private_display->lock);
 676                         LIST_DEL(&b->link);
 677
 678                         free(b);
 679                         /* LCOV_EXCL_STOP */
 680                 }
 681         }
 682
 683         _pthread_mutex_unlock(&private_display->lock);
 684
 685         return ret;
 686 }